Map Snapshot
35 Records
Seasonality Snapshot
Use of media featured on Maryland Biodiversity Project is only permitted with express permission of the photographer.
The gall of a Horned Oak Gall Wasp in Frederick Co., Maryland (6/8/2013).
Media by
Jim Brighton.
A Horned Oak Gall Wasp in Howard Co., Maryland (5/27/2017).
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Media by
Joanne Solem.
Horned Oak Gall Wasp gall on Willow Oak in Anne Arundel Co., Maryland (2/11/2018). Verified by Charley Eiseman/BugGuide.
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Media by
Bill Hubick.
Horned Oak Gall Wasp galls in Anne Arundel Co., Maryland (5/13/2020). (c) tswann, some rights reserved (CC BY-NC).
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Media by
tswann via iNaturalist.
Horned Oak Gall Wasp in Worcester Co., Maryland (1/30/2021). (c) johnbotany, some rights reserved (CC BY-NC).
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Media by
John Hall.
Galls of Horned Oak Gall Wasps on Shingle Oak (Quercus imbricaria) in Montgomery Co., Maryland (4/9/2015).
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Media by
Jane Hill.
Horned Oak Gall Wasp in Queen Anne's Co., Maryland (11/21/2020). (c) johnbotany, some rights reserved (CC BY-NC).
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Media by
John Hall.
Horned Oak Gall Wasp in Washington Co., Maryland (6/4/2023). (c) Mark Etheridge, some rights reserved (CC BY-NC).
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Media by
Mark Etheridge.
Horned Oak Gall Wasp in Dorchester Co., Maryland (5/3/2021). (c) Wayne Longbottom, some rights reserved (CC BY-NC).
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Media by
Wayne Longbottom.
Horned Oak Gall Wasp in Queen Anne's Co., Maryland (10/23/2021). (c) johnbotany, some rights reserved (CC BY-NC).
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Media by
John Hall.
Horned Oak Gall Wasp in Caroline Co., Maryland (Date obscured). (c) johnbotany, some rights reserved (CC BY-NC).
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Media by
John Hall.